Search Results - "Touati, Danièle"

Fur positive regulation of iron superoxide dismutase in Escherichia coli: functional analysis of the sodB promoter by Dubrac, S, Touati, D

“…In Escherichia coli, the expression of sodB, which encodes iron superoxide dismutase, has been suggested to be activated by Fur, the iron-responsive global…”
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Oxidative burst in alfalfa-Sinorhizobium meliloti symbiotic interaction by SANTOS, Renata, HEROUART, Didier, SIGAUD, Samuel, TOUATI, Danièle, PUPPO, Alain

“…Reactive oxygen species are produced as an early event in plant defense response against avirulent pathogens. We show here that alfalfa responds to infection…”
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Characterization of an Atypical Superoxide Dismutase from Sinorhizobium meliloti by Santos, R, Bocquet, S, Puppo, A, Touati, D

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Reactive oxygen species, nitric oxide and glutathione: a key role in the establishment of the legume– Rhizobium symbiosis? by Hérouart, Didier, Baudouin, Emmanuel, Frendo, Pierre, Harrison, Judith, Santos, Renata, Jamet, Alexandre, Van de Sype, Ghislaine, Touati, Danièle, Puppo, Alain

“…Reactive oxygen species are generated in the first steps of the Rhizobium–legume symbiosis. Superoxide radicals and hydrogen peroxide have been detected in…”
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Activation of SoxR by overproduction of desulfoferrodoxin: multiple ways to induce the soxRS regulon by Gaudu, P, Dubrac, S, Touati, D

“…The soxRS response, which protects cells against superoxide toxicity, is triggered by the oxidation of SoxR, a transcription factor. Superoxide excess and…”
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Iron and Oxidative Stress in Bacteria by Touati, Danièle

“…The appearance of oxygen on earth led to two major problems: the production of potentially deleterious reactive oxygen species and a drastic decrease in iron…”
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Essential role of superoxide dismutase on the pathogenicity of Erwinia chrysanthemi strain 3937 by Santos, R, Franza, T, Laporte, M L, Sauvage, C, Touati, D, Expert, D

“…The sodA gene from Erwinia chrysanthemi strain 3937 was cloned by functional complementation of an Escherichia coli sodA sodB mutant and sequenced. We…”
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Increased Expression of Periplasmic Cu,Zn Superoxide Dismutase Enhances Survival of Escherichia coli Invasive Strains within Nonphagocytic Cells by BATTISTONI, A, PACELLO, F, FOLCARELLI, S, AJELLO, M, DONNARUMMA, G, GRECO, R, AMMENDOLIA, M. G, TOUATI, D, ROTILIO, G, VALENTI, P

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Iron and oxygen regulation of Escherichia coli MnSOD expression: competition between the global regulators Fur and ArcA for binding to DNA by Tardat, B, Touati, D

“…Manganese superoxide dismutase (the sodA gene product) in Escherichia coli, is negatively regulated by two global regulators, ArcA (aerobic respiration…”
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Direct Inhibition by Nitric Oxide of the Transcriptional Ferric Uptake Regulation Protein via Nitrosylation of the Iron by D'Autréaux, Benoît, Touati, Danièle, Bersch, Beate, Latour, Jean-Marc, Michaud-Soret, Isabelle

“…Ferric uptake regulation protein (Fur) is a bacterial global regulator that uses iron as a cofactor to bind to specific DNA sequences. The function of Fur is…”
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Critical protective role of bacterial superoxide dismutase in Rhizobium–legume symbiosis by Santos, Renata, Hérouart, Didier, Puppo, Alain, Touati, Danièle

“…In nitrogen‐poor soils, rhizobia elicit nodule formation on legume roots, within which they differentiate into bacteroids that fix atmospheric nitrogen…”
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Involvement of Superoxide Dismutases in the Response of Escherichia coli to Selenium Oxides by Bebien, Magali, Lagniel, Gilles, Garin, Jerome, Touati, Daniele

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Hfq, a new chaperoning role: binding to messenger RNA determines access for small RNA regulator by Geissmann, Thomas A, Touati, Danièle

“…The Sm‐like protein Hfq is involved in post‐transcriptional regulation by small, noncoding RNAs in Escherichia coli that act by base pairing. Hfq stabilises…”
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Fur-mediated transcriptional and post-transcriptional regulation of FeSOD expression in Escherichia coli by Dubrac, Sarah, Touati, Daniele

“…Institut Jacques Monod, CNRS-Universités Paris 6 et Paris 7, 2 place Jussieu, 75251 Paris Cedex 05, France 1 Author for correspondence: Danièle Touati. Tel:…”
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Detoxification of superoxide without production of H2O2: Antioxidant activity of superoxide reductase complexed with ferrocyanide by Molina-Heredia, Fernando P, Houée-Levin, Chantal, Berthomieu, Catherine, Touati, Danièle, Tremey, Emilie, Favaudon, Vincent, Adam, Virgile, Nivière, Vincent

“…The superoxide radical O 2 ·̅ is a toxic by-product of oxygen metabolism. Two O 2 ·̅ detoxifying enzymes have been described so far, superoxide dismutase and…”
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Investigating phenotypes resulting from a lack of superoxide dismutase in bacterial null mutants by Touati, Danièle

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Hypochlorous acid stress in Escherichia coli: resistance, DNA damage, and comparison with hydrogen peroxide stress by Dukan, S, Touati, D

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Induction of the soxRS Regulon of Escherichia coli by Superoxide by Liochev, S I, Benov, L, Touati, D, Fridovich, I

“…The sox RS regulon orchestrates a multifaceted defense against oxidative stress, by inducing the transcription of ∼15 genes. The induction of this regulon by…”
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Recovery of culturability of an HOCl-stressed population of Escherichia coli after incubation in phosphate buffer: resuscitation or regrowth? by DUKAN, S, LEVI, Y, TOUATI, D

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Reaction of the desulfoferrodoxin from Desulfoarculus baarsii with superoxide anion. Evidence for a superoxide reductase activity by Lombard, M, Fontecave, M, Touati, D, Nivière, V

“…Desulfoferrodoxin is a small protein found in sulfate-reducing bacteria that contains two independent mononuclear iron centers, one ferric and one ferrous…”
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